摘要
在pH6～8的酸度范围内;Cu(Ⅱ)与PAN-6S形成1:1红色配合物,最大吸收峰在545nm,铜量在0～30μg/25ml符合比尔定律,摩尔吸光系数为3.12×10~4.加入掩蔽剂可直接测定铝及铝合金中的铜,得到满意的结果.
This artical gives a study on direct spectrophotometric determination of copper with PAN-6S in, water system.The maximum absorption wavelength of this complex is 545nm at pH 6-8.The composition of complex is 1 to 1 and Beer's law is obeyed for 0-30ngCu(Ⅱ)/25ml.The molar absorption coefficient is found to be 3.14×104.This method can be used to determine copper in aluminium and aluminium alloys with satisfactory results.
出处
《冶金分析》
CAS
CSCD
北大核心
1991年第3期23-24,共2页
Metallurgical Analysis
